What happened
On 22 May 2019, a DH82A Tiger Moth, registration G-ANLD, was performing a private local flight from Goodwood Aerodrome. During the takeoff roll on Runway 2D, the aircraft experienced a significant rightward veer as the tail lifted from the grass. The pilot attempted to correct the yaw using full left rudder but was unable to immediately stabilize the direction, causing the aircraft to track toward a wooden hut located roughly 150 meters from the runway edge.
Fearing that reducing power would prevent the aircraft from stopping before hitting the obstruction, the pilot maintained full throttle in an attempt to lift off, climb, and turn away. However, the aircraft failed to gain adequate airspeed. It briefly became airborne before stalling at a low altitude, subsequently striking the ground, the hut, and various pieces of ground equipment. The 1 minor injury sustained by the crew and 1 minor injury sustained by the passenger involved both occupants being thrown forward in their harnesses during the impact.
The investigation
The investigation examined the takeoff conditions and the aerodynamic characteristics of the aircraft. At the time of the accident, a light southerly wind was present, and the aircraft was taking off with a crosswind from the left. Investigators reviewed video evidence which confirmed the aircraft's rightward deviation and the subsequent stall.
Analysis focused on the aircraft's lack of wheel brakes and the specific handling qualities of the Tiger Moth. It was noted that the aircraft's high keel area and limited control authority make it sensitive to crosswinds. The investigation also looked at the propeller slipstream effects, which contribute to a rightward yaw tendency when power is applied.
Findings
- The aircraft's takeoff roll was impacted by a crosswind from the left.
- A rightward yaw developed during the early stages of the takeoff roll, likely due to propeller slipstream effects, and the low speed at that moment limited the effectiveness of the rudder.
- The pilot maintained full throttle to avoid hitting the hut, which prevented the aircraft from decelerating but also failed to provide the necessary climb performance due to the high-drag, tail-low attitude.
- The aircraft's configuration during the takeoff roll impeded acceleration, leading to a stall and subsequent collision.